User Guide

441
ADOBE AFTER EFFECTS 5.0
User Guide
Using stylus pressure to affect opacity
The pressure variation of the pen on the tablet alters the opacity of the stroke as you draw.
Light pressure results in lower opacity values, while increased pressure creates more
opaque strokes. The Opacity value defines the maximum of the Opacity range.
As with Stylus Radius, you can select and specify a stylus Opacity. When stylus Opacity is
active, a checkmark appears by the command on the Vector Paint contextual menu and
and an X appears in the Stylus Opacity check box in the Effect Controls window.
Selecting Preferences for stylus settings
The following appear in the Vector Paint Preferences dialog box under Stylus Options:
Stylus Vendor (Mac OS only) If a tablet is installed, vendor information appears here. If
the system does not detect a stylus, “No stylus detected” appears.
Use High Res. Coordinates When this option is checked, data is recorded with high
resolution (if supported by the stylus). This setting overrides normal mouse coordinates
to use the higher resolution of the tablet, recording strokes with greater precision and
subpixel accuracy.
For other information about using your stylus with Vector Paint, see “Stylus Settings”
under “Selecting Brush Settings options in Effect Controls” on page 422. For information
about opening the Vector Paint Preferences dialog box, see “Selecting viewing options” on
page 439.
Note: Wacom tablets do not support High Res. Coordinates when Proportional mode is
selected in the Wacom control panel.
If you experience offset coordinates with your pen, try the following:
• Check that screen resolution and monitor settings haven’t changed.
• If using a Wacom tablet, make sure that your tablet-mapping aspect isn't set to Propor-
tional. Select To Fit mode or One to One mode instead.
• Restart your system.
• If all else fails, turn off Use High Res. Coordinates. (Subpixel accuracy will be lost, but
Pressure and Eraser modes will still be available.)
UG.book Page 441 Wednesday, February 21, 2001 12:05 PM